National Weather Service warns of ‘extreme’ 115-degree heat for 18 US states through July 4 weekend – see map
The eastern third of the US could see extreme heat this week, as warnings predict temperatures rising above 100 degrees. The National Weather Service is warning at least 18 states that extreme heat, even record-setting and “dangerous” temperatures, is coming through Monday, June 29, 2026. According to the NWS, the extreme heat wave should last